DAMA/R&D

Search for 2β processes in Zinc and Tungsten with ZnWO4 crystal scintillators

As an example, the energy spectrum accumulated over 4305 h with the 239 g ZnWO4 crystal scintillator in the lowbackground set-up is shown in the figure. The energy spectrum accumulated over 2798 h in the same conditions with a low (10 keV) energy threshold is presented in the inset.